Angling the board?

Hi,
I'm trying to learn to go across the wave right from the take off. At the moment, I can do a take off but often end up too low when I do the bottom turn. As a result, much of the time I don't have enough speed to do a top turn.
I saw other surfers take off and even when the wave is not very steep , they somehow manage to do what looks like a bottom turn not at the bottom but more like in the middle of the wave. I thought angling the board was the answer but it only seems to work on steeper waves and even then it's not great. I might be doing it wrong though.
What is often happening to me is merely sliding down the wave face, then leaning on a side of the board to go one way or the other. With luck I still manage to follow the wave but others do it much nicer and more consistently.
I also tried putting my back foot directly over the fins . Sometimes it helps to turn faster, but other times it does not work...
I use a shortboard 6'10 and a longboard 8'2. The problem is more obvious on the bigger board .
Any advice or ideas?
Thanks!
I'm trying to learn to go across the wave right from the take off. At the moment, I can do a take off but often end up too low when I do the bottom turn. As a result, much of the time I don't have enough speed to do a top turn.
I saw other surfers take off and even when the wave is not very steep , they somehow manage to do what looks like a bottom turn not at the bottom but more like in the middle of the wave. I thought angling the board was the answer but it only seems to work on steeper waves and even then it's not great. I might be doing it wrong though.
What is often happening to me is merely sliding down the wave face, then leaning on a side of the board to go one way or the other. With luck I still manage to follow the wave but others do it much nicer and more consistently.
I also tried putting my back foot directly over the fins . Sometimes it helps to turn faster, but other times it does not work...
I use a shortboard 6'10 and a longboard 8'2. The problem is more obvious on the bigger board .
Any advice or ideas?
Thanks!